Spend “An Evening on the Stage” with the San Francisco Opera Guild to applaud its longtime champions, Carol and Dixon Doll. Co-chaired by Farah Makras and Romana Bracco, with design by the inimitable Riccardo Benavides, the annual soiree is poised to have guests singing. Cocktail hour begins at 6 p.m. sharp in the War Memorial Opera House lobby, followed by dinner and dancing on the main stage. Tickets range from $1,250 to $8,000. For further details, contact the guild at (415) 565-3204 or see sfopera.com/opera-guild. NHG Sponsored.